On Fri, 6 Mar 1998, Chris Jones wrote:

> On a vaguely related note, does anybody know if there are video cards
> out there for i386 machines that will do the necessary sync-on-green and
> whatever else is necessary to support these old DECStation monitors?

I'm sure there are, but the easiest solution is probably just to make a
convertor box.  I can personally vouch for the 4066 based circuit at
http://www.paranoia.com/~filipg/HTML/REPAIR/F_Sync_Green3.html, as I use
one with my PC running Xfree86 on a $40 Cirrus Logic video card driving
an old Tektronix monitor...

> For that matter, what *does* the video card have to do to work with one
> of these monitors?

Just has to have the sync timings right, and get the sync information on
the green wire...  It took me a bit of tweaking with Xfree86 to come up
with a working mode, but it's pretty damn nice to be able to use what is
usually surplus hardware...  :)

----
  Aaron J. Grier  | "Not your ordinary poofy goof." | agrier@poofy.goof.com
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